defprotocol Infix.Arithmetic do
  def left + right
  def left - right
  def left / right
  def left * right
end

defimpl Infix.Arithmetic, for: Float do
  defdelegate left + right, to: Kernel
  defdelegate left - right, to: Kernel
  defdelegate left / right, to: Kernel
  defdelegate left * right, to: Kernel
end

defimpl Infix.Arithmetic, for: Integer do
  defdelegate left + right, to: Kernel
  defdelegate left - right, to: Kernel
  defdelegate left / right, to: Kernel
  defdelegate left * right, to: Kernel
end